(19)
(11) EP 2 460 094 A1

(12)

(43) Date of publication:
06.06.2012 Bulletin 2012/23

(21) Application number: 09847948.8

(22) Date of filing: 14.12.2009
(51) International Patent Classification (IPC): 
G06F 17/30(2006.01)
G06F 17/00(2006.01)
(86) International application number:
PCT/US2009/067849
(87) International publication number:
WO 2011/014214 (03.02.2011 Gazette 2011/05)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

(30) Priority: 31.07.2009 US 533365

(71) Applicant: Hewlett-Packard Development Company, L.P.
Houston, TX 77070 (US)

(72) Inventors:
  • AL-OMARI, Awny, K.
    Austin Texas 78728 (US)
  • CHEN, Qifan
    Austin Texas 78728 (US)
  • REYES, Tom, C.
    Austin Texas 78728 (US)
  • WEHRMEISTER, Robert, M.
    Austin Texas 78728 (US)
  • EZZAT, Ahmed, K.
    Cupertino California 95014 (US)

(74) Representative: Zimmermann, Tankred Klaus et al
Patentanwälte Schoppe, Zimmermann, Stöckeler, Zinkler & Partner Postfach 246
82043 Pullach bei München
82043 Pullach bei München (DE)

   


(54) SELECTIVITY-BASED OPTIMIZED-QUERY-PLAN CACHING